Aceton assimilator

An aceton assimilator is a device built by the extinct Menthar civilization in Star Trek. Aceton assimilators appear only in the TNG episode "Booby Trap", making them a one-episode technology.

An aceton assimilator remotely drains energy from power sources and releases it as hard radiation. The Menthars used the as a type of mine in their war with the Promellians.

The USS Enterprise encountered a field of aceton assimilators deployed in an asteroid field when they investigated a 1000-year-old derelict Promellian warship. The assimilators have remained operational for all this time, and they soon begin to drain power from the Enterprise, bombarding the ship with radiation in the process. The assimilators drain enough power to keep the ship maneuvering out of the asteroid field on impulse or warp propulsion, and the constant radiation bombardment steadily depletes the ship's shields.

The assimilators are also shown to be capable of absorbing the energy of starship phaser blasts without sustaining any damage. They do not, however, prevent photon torpedoes from eventually being used to destroy the Promellian vessel to keep any other ships from being lured into the trap.